Klemens Hammerer

TL;DR: In this paper, the interaction of light with multiatom ensembles has attracted much attention as a basic building block for quantum information processing and quantum state engineering, and the authors provide a common theoretical frame for these processes, describes basic experimental techniques and media used for quantum interfaces, and reviews several key experiments on quantum memory for light, quantum entanglement between atomic enambles and light, and quantum teleportation with atomic enassembles.

TL;DR: The observation of optomechanical normal mode splitting is reported, which provides unambiguous evidence for strong coupling of cavity photons to a mechanical resonator, which paves the way towards full quantum optical control of nano- and micromechanical devices.

TL;DR: The teleportation of a quantum state between two single material particles (trapped ions) has now also been achieved and is demonstrated between objects of a different nature—light and matter, which respectively represent ‘flying’ and ‘stationary’ media.

TL;DR: In this article, the authors discuss the prospects of building hybrid quantum devices involving elements of atomic and molecular physics, quantum optics and solid state elements with the attempt to combine advantages of the respective systems in compatible experimental setups.

TL;DR: In this paper, a scheme to realize quantum state tomography, squeezing, and state purification of a mechanical resonator using short optical pulses is presented, allowing observation of mechanical quantum features despite preparation from a thermal state and is experimentally feasible using optical microcavities.